[Boost-users] [config] policy for setting BOOST_HAS_THREADS?

Hello, What is the policy by which BOOST_HAS_THREADS gets defined or not? I used to think this macro is somehow affected by the selection of a single-threaded or multithreaded runtime library as done in bjam with threading=single and threading=multi, but some experiments in Linux suggest that this is not the case, as discussed in the following thread: http://lists.boost.org/boost-build/2008/11/20641.php Thank you, Joaquín M López Muñoz Telefónica, Investigación y Desarrollo